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HomeProductsResistorsChip Resistor - Surface MountBVS-M-R001-1.0
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BVS-M-R001-1.0 - Isabellenhuette USA

Manufacturer Part Number
BVS-M-R001-1.0
Manufacturer
Isabellenhuette USA
Allelco Part Number
32D-BVS-M-R001-1.0
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
42,600 pcs available, New & Original
Parts Description
RESISTOR - ISA-WELD SHUNT, 0.001
Package
3920
Data sheet
-
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 42600
  • Unit Price: $0.40
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $0.40 $0.40
10+ $0.331 $3.31
30+ $0.297 $8.91
100+ $0.263 $26.30
500+ $0.242 $121.00
1000+ $0.231 $231.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

BVS-M-R001-1.0 Tech Specifications
Isabellenhuette USA - BVS-M-R001-1.0 technical specifications, attributes, parameters and parts with similar specifications to Isabellenhuette USA - BVS-M-R001-1.0

Product Attribute Attribute Value
Manufacturer Isabellenhuette USA
Tolerance ±1%
Temperature Coefficient ±50ppm/°C
Supplier Device Package 3920
Size / Dimension 0.394" L x 0.205" W (10.00mm x 5.20mm)
Series BVS
Resistance 1 mOhms
Ratings AEC-Q200
Power (Watts) 7W
Product Attribute Attribute Value
Package / Case 3920 (1052 Metric)
Package Tape & Reel (TR)
Operating Temperature -65°C ~ 170°C
Number of Terminations 2
Height - Seated (Max) -
Features Automotive AEC-Q200, Current Sense, Moisture Resistant
Failure Rate -
Composition -

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8533.21.0090

Frequently Asked Questions(FAQ)

What makes the BVS-M-R001-1.0 suitable for automotive current sensing applications compared to standard chip resistors?
The BVS-M-R001-1.0 is a dedicated current-sense shunt resistor engineered specifically for automotive environments. Unlike general-purpose chip resistors, it combines AEC-Q200 qualification with a 1 mOhm resistance value optimized for low-side current monitoring in battery management systems, motor controllers, and power distribution circuits. The ±1% tolerance ensures repeatable voltage drop measurement across a production volume, which is critical for accurate current feedback in closed-loop control systems. The 7W power rating at full load in a compact 3920 package allows designers to minimize board space while maintaining thermal headroom in high-current applications.
How does the temperature coefficient of ±50ppm/°C on the BVS-M-R001-1.0 affect measurement accuracy in automotive temperature extremes?
The BVS-M-R001-1.0 exhibits a ±50ppm/°C temperature coefficient, which translates to approximately ±0.5% resistance drift across the full -65°C to 170°C automotive operating range (235°C span). For a 1 mOhm resistor, this represents a maximum shift of ±5 µOhms. In practical current-sensing circuits, this drift becomes measurable when monitoring multi-hundred-amp loads with high-resolution ADCs (12-bit or higher). Cold-start operation at -65°C and sustained thermal soak at 170°C require compensation in firmware or analog signal conditioning if measurement error must remain below ±0.5%. The relatively tight coefficient reflects Isabellenhuette's precision shunt manufacturing process and makes the BVS-M-R001-1.0 more stable than commodity metal-film resistors across automotive temperature swings.
Can the BVS-M-R001-1.0 handle the thermal stress of continuous maximum power dissipation in an enclosed motor controller housing?
The BVS-M-R001-1.0 is rated for 7W continuous power dissipation, but board-level thermal management determines whether this rating can be realized in a confined enclosure. At 7W in a 1 mOhm shunt, the current reaches approximately 83A RMS, generating significant localized heat. In an enclosed housing without forced airflow, the BVS-M-R001-1.0 will experience junction temperature rise beyond the PCB ambient due to its own dissipation plus surrounding component heat. Designers must account for transient and sustained current profiles: intermittent 83A peaks may be tolerable, but continuous operation requires thermal modeling or derating. The moisture-resistant construction and MSL-1 rating support solder reflow and humid storage, but thermal cycling from rapid current transients can induce mechanical stress at the solder joints. PCB copper weight (2oz or heavier), thermal vias, and proximity to ground planes all influence the achievable power margin.
What is the practical resolution limit when using the BVS-M-R001-1.0 with a 16-bit ADC in a 48V battery management system?
In a 48V system using the BVS-M-R001-1.0 for low-side current sensing, a 16-bit ADC with a ±100mV full-scale input range provides 3.05 µV per count. The voltage drop across the BVS-M-R001-1.0 at 50A is 50 mV, leaving room for analog filtering and calibration without saturating the ADC range. However, the ±1% initial tolerance of the BVS-M-R001-1.0 introduces a 10 µOhm offset, equivalent to 500 µV at 50A—roughly 164 ADC counts on a 16-bit converter. This means that initial calibration (zeroing the ADC reading at zero current) is mandatory; relying on uncalibrated datasheet resistance will introduce 0.2% to 0.3% measurement error. The ±50ppm/°C coefficient adds another 0.25% error across temperature extremes if uncompensated. Combined, these factors require either firmware-based offset correction and temperature sensing or acceptance of ±0.5% steady-state current measurement error when using the BVS-M-R001-1.0.
How does the BVS-M-R001-1.0 compare to lower-cost alternatives like wirewound or bulk-metal foil shunts for battery pack management?
The BVS-M-R001-1.0 offers distinct advantages over conventional alternatives in automotive battery management contexts. Wirewound shunts exhibit higher parasite inductance (often 1 nH or more), causing measurement artifacts during rapid current transients common in hybrid and battery electric vehicle powertrains. Bulk-metal foil shunts provide superior temperature stability (±25ppm/°C or better) but typically carry higher cost and larger footprints, making them unsuitable for compact safety modules where the BVS-M-R001-1.0 thrives. The BVS-M-R001-1.0's ±1% tolerance and ±50ppm/°C coefficient represent a middle ground: adequate precision for vehicle-level current monitoring without the expense of precision foil constructions. The AEC-Q200 automotive qualification ensures the BVS-M-R001-1.0 has undergone thermal cycling, moisture resistance, and failure-rate testing, validating long-term reliability in field conditions. Cost-per-ampere-monitored, the BVS-M-R001-1.0 is typically 30% to 50% lower than foil alternatives while delivering measurably better transient response than wirewound designs.
What precautions are necessary when laying out the BVS-M-R001-1.0 in a high-current power distribution module?
The BVS-M-R001-1.0's minimal resistance (1 mOhm) means that mechanical connection integrity and PCB trace inductance become critical. Poor solder joint quality, cold solder, or microvoids at either termination can double or triple the effective resistance, rendering current measurements unreliable. The 3920 package dimensions (10mm × 5.2mm) should be mounted directly adjacent to the current measurement amplifier's sense inputs; long trace runs between the BVS-M-R001-1.0 and the analog front-end introduce noise and voltage drop in unrelated portions of the circuit. Kelvin sensing (separate sense traces routed from the resistor terminations, isolated from high-current power traces) is mandatory; common-point sensing defeats the measurement purpose. The BVS-M-R001-1.0 should be positioned to minimize thermal coupling with high-power transistors or diodes; direct thermal contact can elevate the resistor's temperature coefficient effect if the resistor heats faster than the compensation network detects temperature change. Ground plane continuity beneath the BVS-M-R001-1.0 aids thermal dissipation and provides low-impedance current return paths, reducing measurement noise.
Is the BVS-M-R001-1.0 suitable for direct integration into a solid-state relay or contactor control circuit requiring fast fault detection?
The BVS-M-R001-1.0 can serve this role within specific constraints. The resistor's physical dimensions (10mm × 5.2mm) and inherent parasitic inductance are low enough to support measurement bandwidths up to 1 MHz with proper signal conditioning. In solid-state relay control, monitoring load current through the BVS-M-R001-1.0 enables protective shutdown if current exceeds thresholds (indicating a shorted load or gate-drive failure). The ±1% tolerance and ±50ppm/°C coefficient allow predictable threshold settings across production units and temperature ranges. However, the BVS-M-R001-1.0 dissipates 7W at 83A; sustained fault conditions without active current limiting will create heat that can degrade threshold accuracy within tens of milliseconds. Fast fault detection (< 100 µs) relies on the measurement amplifier's settling time, not the BVS-M-R001-1.0 itself, so high-speed fault discrimination is architecturally feasible. Designers must incorporate current limiting or rapid PWM shutdown to prevent runaway thermal stress on the BVS-M-R001-1.0 during extended faults.
What does the MSL-1 moisture sensitivity rating on the BVS-M-R001-1.0 mean for manufacturing and storage conditions?
MSL-1 (Moisture Sensitivity Level 1) on the BVS-M-R001-1.0 indicates unlimited shelf life without baking or desiccant packaging, provided storage remains below 85% relative humidity and 30°C. Unlike higher MSL components (MSL-3 or MSL-4) that require desiccant bags and moisture barriers, the BVS-M-R001-1.0 can be stored in standard, non-controlled warehouse conditions without risk of moisture-induced solder joint failure after reflow. This simplifies supply chain logistics: the BVS-M-R001-1.0 does not require dry-bake cycles before assembly, reducing manufacturing cycle time and defect risk. For high-volume automotive applications, MSL-1 status translates to lower procurement complexity and faster component availability. The moisture-resistant construction (explicitly stated in the BVS-M-R001-1.0 specification) also supports field-level rework; if a unit requires solder touch-up in a service environment, the BVS-M-R001-1.0 maintains integrity without pre-bake preparation that would be necessary for MSL-3 devices.
How does the 3920 package size of the BVS-M-R001-1.0 compare to discrete through-hole shunts in space-constrained automotive modules?
The BVS-M-R001-1.0 in 3920 (1052 metric) packaging offers a 10mm × 5.2mm footprint, roughly equivalent to a 0402 or 0603 discrete resistor in area. Equivalent through-hole shunts typically occupy 15mm to 25mm in length plus mounting hardware, requiring 2mm to 3mm of PCB height. The BVS-M-R001-1.0's surface-mount configuration enables board density advantages critical in modern battery management and motor controller modules where PCB real estate is at a premium. The compact footprint also reduces parasitic loop inductance in the shunt's current path, improving measurement signal integrity compared to bulkier through-hole alternatives. For designs targeting under 50 × 50 mm module footprints, the BVS-M-R001-1.0 is often the only practical choice. Heat dissipation efficiency is also higher in the 3920 package; thermal coupling to the PCB is more uniform than in through-hole designs, where thermal resistance depends on mounting clip design and contact pressure.
Can the BVS-M-R001-1.0 be used in a vehicle's DC-DC converter output monitoring circuit, or is a separate precision shunt required?
The BVS-M-R001-1.0 is appropriate for DC-DC converter output current monitoring, provided the application tolerates the specified precision. In a typical 48V-to-12V vehicle converter delivering 50A to 100A, the BVS-M-R001-1.0 generates 50 mV to 100 mV of sense voltage. This signal is measurable by a precision analog front-end (integrating amplifier or delta-sigma ADC) without additional attenuation. The ±1% initial tolerance and ±50ppm/°C coefficient allow output current readback to within ±0.5% across production and operating temperature ranges. Higher-precision converters targeting ±1% or better output regulation might require a lower-tolerance shunt (±0.5% or ±0.1%), but such requirements are rare in automotive powertrain applications. The BVS-M-R001-1.0's 7W capability is more than sufficient for typical converter monitoring; even at 150A sustained current (an extreme scenario), thermal derating is manageable if the shunt is mounted on a generous copper island with thermal vias. The decision between the BVS-M-R001-1.0 and a premium alternative depends on whether output current feedback is used for regulatory control (where tighter tolerance is justified) or diagnostics and telemetry (where the BVS-M-R001-1.0 suffices).
What is the expected failure rate or mean time between failures (MTBF) for the BVS-M-R001-1.0 in continuous automotive operation?
The BVS-M-R001-1.0 specification does not provide an explicit MTBF value, but the AEC-Q200 automotive qualification ensures conformance to thermal cycling, humidity, and electrical stress testing protocols established for automotive passive components. AEC-Q200 qualification typically corresponds to field failure rates below 50 failures per million device-hours (FIT) for properly designed and derated applications. The BVS-M-R001-1.0's MSL-1 moisture rating and sealed construction reduce environmental failure modes common in unqualified shunts. In practice, observed failures in automotive-grade current-sense shunts are dominated by solder joint cracking due to thermal cycling (not the resistor element itself) and mechanical stress from vibration. Isabellenhuette's manufacturing process and the BVS-M-R001-1.0's AEC-Q200 status suggest reliability comparable to automotive-grade capacitors and inductors. For ten-year vehicle lifetime operation involving 200+ thermal cycles and thousands of electrical transients, a well-designed circuit using the BVS-M-R001-1.0 should experience failure rates below 1%, assuming proper PCB layout and thermal management as described in the device's application notes.
How should the BVS-M-R001-1.0 be calibrated or characterized to account for tolerance and temperature drift in production testing?
Production calibration of circuits using the BVS-M-R001-1.0 should employ a multi-point approach to separate component tolerance from measurement circuitry error. At room temperature (25°C), inject a known current (e.g., 50A) through the BVS-M-R001-1.0 and record the ADC reading. The measured voltage divided by the injected current yields the effective shunt resistance, accounting for the BVS-M-R001-1.0's ±1% tolerance and analog front-end offset. Store this calibration coefficient in nonvolatile memory. During field operation, monitor the power dissipation or ambient temperature if available and apply a temperature correction factor using the ±50ppm/°C coefficient: resistance at temperature T = resistance at 25°C × [1 + 50e-6 × (T - 25)]. For high-precision applications, a second calibration point at an elevated temperature (e.g., 60°C) can verify temperature coefficient linearity. The BVS-M-R001-1.0's characteristic is stable enough that single-point calibration at factory and firmware-based temperature compensation typically achieve ±0.3% current measurement accuracy across the -65°C to 170°C range.
Does the BVS-M-R001-1.0 require thermal management isolation from adjacent power components, or can it be integrated directly into a power module substrate?
The BVS-M-R001-1.0 benefits from modest thermal isolation in high-dissipation modules but does not require external heatsinking or forced cooling in typical automotive applications. Direct integration into a power module substrate (substrate sharing with high-power MOSFETs or IGBTs) is acceptable if spatial separation of at least 5mm to 10mm is maintained and the BVS-M-R001-1.0 is not directly beneath a high-power device. Proximity to power semiconductors accelerates thermal rise in the BVS-M-R001-1.0, reducing its effective power budget due to higher baseline junction temperature. In compact integrated modules, designers should position the BVS-M-R001-1.0 away from the hottest zone and ensure good thermal coupling to a common heat sink or baseplate that distributes temperature evenly. If the BVS-M-R001-1.0 is expected to dissipate near its 7W maximum continuously, verify that the local PCB temperature (measured or simulated) does not exceed 120°C; if the BVS-M-R001-1.0 experiences substrate temperatures above 100°C for extended periods, the ±50ppm/°C temperature coefficient becomes more aggressive, and real-time temperature compensation via an embedded thermistor or RTD becomes advisable.

Parts with Similar Specifications

The three parts on the right have similar specifications to Isabellenhuette USA BVS-M-R001-1.0

Product Attribute BVS-M-R0005-1.0 BVS-M-R0007-1.0 BVS-M-R001-5.0 BVS-M-R001-2.0
Part Number BVS-M-R0005-1.0 BVS-M-R0007-1.0 BVS-M-R001-5.0 BVS-M-R001-2.0
Manufacturer Isabellenhuette USA Isabellenhuette USA Isabellenhuette USA Isabellenhuette USA
Tolerance - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Temperature Coefficient - - - -
Number of Terminations - - - -
Size / Dimension - - - -
Composition - - - -
Series - - - -
Ratings - - - -
Power (Watts) - - - -
Height - Seated (Max) - - - -
Features - - - Simultaneous Sampling
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Failure Rate - - - -
Resistance - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad

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BVS-M-R001-1.0 Image

BVS-M-R001-1.0

Isabellenhuette USA
32D-BVS-M-R001-1.0

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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